Tapley w



(No Model.)

T. W. YOUNG. CARBURETING STREET LAMP.

Patented lVI-ar. 11, 1890 wv Il IMI muuu ...www rn. mu a A 31413914 tot@M4 Wy 7 @WVM/moo e o @Moin m N PETERS: PhumLimugmphur, washington. 11C,

UNITED STATES PATENT L@Erica TAPLEY XV. YOUNG, OF VASHINGTON,DISTRICT OFCOLUMBIA, ASSIGNOR OF ONE-HALF TO CHARLES MCFUEN, OF SAIWIE PLACE.

CARBURETING STREET-LAM P.

SPECIFICATION forming part of Letters Patent N o. 423,367, dated March11, 1890.

Application tiled June 1,1889. Serial No. 312,843. (No model.)

To all whom it may concern:

` Be it known that I, TAPLEY IV. YOUNG, a citizen ot the United Statesof America, residing at Vtfashington, in the District of Columbia, haveinvented certain new and useful Improvements in Oarbureting Street-Lamps, of which the following is a specification, reference being hadtherein to the accompanying drawings.

In towns and villages not supplied with gas-plants it is customary atpresent, for want of a better means, to use oil-lamps mounted upon postsin lighting the streets. As to the superiority of illuminatinggas forthis purpose nothing need be herein stated.

The object of my invention is to provide a cheap street-lamp in .whichvapor is the illuminant, the vapor being produced by carbureting airstored in the lamp-post.

The invention will first be described in connection with theaccompanying drawings, and then pointed out in the claims.

Figure l is a side elevation of my carbureting street-lamp, the postbeing shown in section. Fig. 2 is a sectional elevation of thecarburetor enlarged. Fig. 3 is anenlarged perspective view of thedrier-drawer with the trays removed. Fig. et is a transverse section,enlarged, of the drier-drawer, taken on the line x of Fig. l, looking tothe rear.

My carbureting street-lamp comprises as essential elements a post havinga compressedair reservoir and an expansion-chamber, a carburetor, and alamp, all constructed and arranged in the manner substantially asheroina'fter set forth.

Referring to the accompanying drawings, it will be seen that thelamp-post is made in two parts or sections A A both of which are hollow,the lower part A being larger in cross-section than the upper part A.Seetion A is closed at its upper end by a plate a and at its lower endby a base-plate B, which is considerably greater in diameter than thepost, in order to serve as an anchor for the latter when set in theground. a2 represents the compressed-air reservoir inside this sectionA.

A vestibule V, elosed by a hinged door fu, secured in any suitablemanner, is formed in the upper part of section A of the post by means ofwalls w to', for purposes which will be explained farther on.

It is well known that when the atmosphere is heavy, as in wet or foggyweather, it has less affinity for carbon vapor than when dry and light,and therefore in order to produce an approximately uniform quality ofcarbureted air in all kinds of weather by the carburation of air thelatter, when moist, should 6o be dried before it is brought int-ocontact with carbureting vapor, and for this purpose I cause it to iirstpass over a material having an affinity for water*such, for instance, asunslaked lime.

That a relatively large surface of the lime may be exposed to the air ina small space, I employ a drawer D, open at the bottom and at one end,as seen in1 Fig. 3, to the inner sides of which are attached cleats d,on which 7o I place trays T, containing the desiccating material c.These trays, which are not of the, full dimensions Aof the interior ofthe drawer, are so placed upon the cleats 'as to leave an open passagebetween each tray and 7 5 the side ot the drawer, these passagesalternating from side to side, as seen in Fig. 4, so that the ascendingair will pass up through the lower passage and over the whole sur faceof the lower tray, thence up through the 8o next passage and over 4thesecond tray, and so on. This drawer is placed in the upper portion ofsection A of the post, its rear end being supported by a ledge Zand itsfront end resting in an opening in the rear wall w of the vestibule,this end being so fitted and packed in the said opening as to preventthe escape of air, and held in place by a turn-button or suitabledevice. (Not shown.)

A short pipe or tube E, screw-threaded on 9o -its upper portion andprovided with a valve e, is inserted through the lower wallie of thevestibule, and a bent pipe or tube E', provided with a valve e', isinserted through the rear wall w of the vestibule and through the plate9 5 a into the expansion-chamber a in section A of the post.

F represents the carburetor, which is of a very simple and common form,consisting of a copper boX provided inside with a series of roo pans l 23 fi, secured at a suitable distance apart and so arranged as to leaveopenings between the pans and the sides of the box, said openingsalternating from side to side, as seen in Fig. 2. The spaces between thepans are filled with eXcelsior or other like absorbent for the oil.Through one side of the boX, a short distance above the upper pan, isinserted a funnel-pipe f, through which to pour oil into the carburetor,the outer end'of this pipe being bent upwardly and provided with ascrew-cap. This upward bend of the funnelpipe enables the operator togage the proper quantity of oil. The air-inlet pipe G enters thecarburetor through a stuffing-box g and passes up one side to near thetop and then bends downward, its end reaching below the lower pan.Outside the carburetor this pipe is provided witha valve g. Thevapor-exit pipe H, on the oute'r end of which is the burner I, passesinto the carburetor from the upper side through a stufIing-box t, itslower inner end resting a short distance above the oil-line. Thecarburetor is supported upon brackets b at the top of the post.

L represents the lamp, which is of common construction, secured inanysuitable manner on top of the carburetor.

To put my carbureting street-lamp in operation, t-he door of thevestibule is opened and an air-pump is attached to pipe E, valve e beingopened and valve c closed. Air is then forced into theair-reservoiruntil a sufficient density is attained, when the pump isdetached,y valve c closed, and valve c opened. Both of these valvesbeing wit-hin the vest-ibule, the operator is enabled to convenientlyregulate the low of air into and out of the reservoir. The air will thenpass over the desiccating material in the manner above stated and outthrough the tube E and into the upper section A of the post, whereitwill expand and lose the pressure with which it left the reservoir. Itwill then enter the airiulet pipe G of the carburetor, whose lower endis passed through the upper closed end of the post, as seen in thedrawings, and emerge from said pipe near the bottom of the carburetor.Then it will pass across the carburetor below thelower pan, thence upthrough the opening between the pan and the side of the box, thence overthe top of the pan and up through the next opening, and so on, in thismanner becoming thoroughly carbureted. It is then conveyed through thevapor-outlet pipe to the burner. In the event of such an accumulation ofair in the expansion-chamber that the air would pass into the carbuofair into said reservoir, an expansion-chamber, and a connection betweenthe reservoir and said chamber, in combination with a carburetorarranged to receive air from the eX- pansion chamber, and a burnerconnected with thecarburetor, substantially as shown and described.

2. A lamp-post comprising a reservoir for compressed air, a pipe for theintroduction of air into said reservoir, an expansion-chamber, andconnection between the reservoir and said chamber, in combination with acarburetor mounted on top of the post and in communication with theexpansion-chamber, anda lamp mounted on the carburetor and incommunication therewith, all arranged substantially as shown anddescribed.

3. A lamp-post comprising a reservoir for compressed air, a pipe forintroducing air, an expansion-ch amber, a connection between thereservoir and expansion-chamber, a receptacle containing a desiccatingmaterial within the reservoir, a carburetor mounted on top 0f the postand connected with the eXpansion-chamber, and a lamp mounted on thecarburetor connected therewith, all combined substantially as described.

4. A lamp-post made in two sections, as described, the lower one ofwhich serves as a reservoir for condensed air and is provided with avestibule, a pipe leading from the vestibule to the reservoir, anotherpipe communicating with the reservoir and the interior of the uppersection, both pipes being provided with valves within the vestibule, acarburetor mounted on top of the upper section of the post and connectedwith the upper chamber thereof, and a lamp whose burner is above and incommunication with the carburetor, all combined substantially asdescribed, and for the purposes set forth.

5. A carbureting street-lamp comprising a post made in two sections, thelower one of which serves as a reservoir for condensed air and isprovided with a vestibule, the interior of the upper section serving asan expansionchamber, areceptacle containing a desiccating materialwithin the lower section, a pipe leading from the vestibule to thereservoir, another pipe communicating with the reservoir and theexpansion-chamber, both pipes being provided-with valves within thevestibule, a carburetor mounted on top of the post and in communicationwith the expansion-chamber, and a lamp whose burner is above and incommunication with the carburetor, all com bined as described. v

In testimonyT whereof I affix my signature in presence of two witnesses.

TAPLEY IV. YOUNG.

Witnesses:

COLUMBIA T. BUCKEY, ANsoN C. TIcHENoR.

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